Administrator of



B. WESTON, Decd. R 'WHITLEY, Admmlstrator (No Model.)

TENSION DEVICE FOR LOOM SHUTTLES.

Patented Aug. 3,1897.

7),?1257 LeJJeJ.

T Nonms PEYERS c0. Pwo'roumo UNITE STATES PATENT FiucE.

RALPH WHITLEY, OF PATERSON, NEW JERSEY, ADMINISTRATOR OF BUOKLEY WESTON,DECEASED.

TENSION DEVICE FOR LOOM -SHUTTLES.

SPECIFICATION forming part of Letters Patent No. 587,352, dated August3, 1897. Application filed October 11, 1895. Renewed J' 1111c 22, 1897.Serial No. 641,822. (No model.)

T0 at whom it may concern:

Be it known that BUCKLEY WESTON, deceased, late of the city of Paterson,in the county of Passaic and State of New Jersey, in his lifetimeinvented certain new and useful Improvements in Tension Devices forShuttles, of which the following is a specification.

This invention relates to tension devices for that class of shuttlesemployed in weaving broad silk goods.

The object of the invention is to secure the accurate binding of thecloth by the use of tension-springs employed as hereinafter set forthand to afford facilities for the proper adjustment of the springs and toregulate the tension thereof with alacrity. These objects are attainedby placing the tension device within the shuttle as shown in thedrawings and hereinafter described.

In what is commonlyknown as the French shuttle a semicircular plate issecured to the outside of the shuttle, and arms provided with guides aswell as tension-springs are secured to said plate, all of whichnecessitates the use of a lathe constructed specially for their use, theprojection on outside of shuttle working outside of the lathe.

By this improvement the same if not better results are accomplished asby the French shuttle by employing a plate of metal or other suitablematerial three-quarters of an inch in width by about three inches inlength, which is placed within the shuttle on the bottom thereof and towhich are secured guide-arms and tension-springs so as to extendlongitudinally along the same in the bottom of the shuttle, as shown inthe drawings.

In the drawings, Figure 1 is a plan of the device. Fig. 2 is a side oredge view. Fig. 3 is a detail view of eyebar with binder. Fig. 4 is aplan of shuttle with device in position, and Fig. 5 is a longitudinalsection of the same.

In the drawings, A is the shuttle; A a lipengaging device; A a groove inside of shuttle; B, the quill; S, the filling.

a is the plate of the device, which is provided with the engaging lip a,adapted to slide under the projecting part of the shuttle A when theplate a is slid along the bottom of the shuttle into its properposition.

When the plate a is in its proper position, it is securely held there bymeans of the securing pin or screw 6, which passes transversely throughthe sides of the shuttle along the transverse groove e in the top of theplate a.

A spring 19, having a coil 1), is secured to the plate a by means of theloops b b b, formed by passing the steel wire through and under theplate by means of the small perforations or openings shown in Fig. 1.

' A looped tension-bar d, or, rather, a pair of the same, are secured-tothe plate a by screws or rivets u On the back of each of said looptension-bars is an eye (Z through which the end of the spring 6 passesand is permitted to move as the loop-bar is operated by the tighteningor loosening of the thread or filling S. The loop tension-bar cl isprovided with the desired number of loops or eyes d.

f and f are the ordinary eyelets in shuttle for filling.

In the construction of this new tension device strength and durabilityare attained by winding a copper wire 0 around the steel loops d andsoldering the same together to prevent the loop from opening or breakingby the concussion of the shuttle. Two or more threads or cords of anysuitable material, as indicated by the letters 07. n in the drawings,are passed from one side of the shuttle to the other, over which cordsthe filling passes from the quill to the eyes in the tension-bars topreventit from becoming entangled or caught in the springs. To regulatethe tension of the springs, they may be adjusted for that purpose byincreasing or diminishing the number of the coils 1), thereby varyingthe length of the springs b. The springs being constructed of a verytine and delicate wire which is easily manipulated,the length of thesprings may be changed with facility for the purpose of regulating thetension.

Instead of passing the ends of the tensionsprings through the lower eyes(Z of the tension-bars (Z (I said tension-springs I) b may have the endsthereof coiled around said tension-bars d d at a point anywhere betweenthe engaging ends 01 of said tension-bars and the nearest loops thereonwithout varying from the essential principles of the invention, whichconsist in the combination, with a shuttle, of the plate a, placedWithin the shuttle and extending longitudinally along the bottom of thesame, as shown in the drawings, the two looped tension-bars secured tosaid plate, the two tension-springs also secured to said plate beingprovided with the coils b, the ends of said tension-springsb beingloosely connected with the loop tensionbars to afford the tensionrequired.

WVith this description of the invention ,what is claimed is In a tensiondevice for shuttles the combination with the shuttle, having theprojection or lip A of the plate at having the engaging lip (1' adaptedto slide under the projecting lip A said plate extending; longitudinallyalong the bottom of the shuttle, in-

side thereof, and being provided with the groove 6 and secured thereinby screw e Which passes transversely through the shuttle along thegroove 6' in the plate a; the looped tension-bars d d secured at theirengaging ends 61 to said tension-plate, the tension-springs b b securedto the plate a and provided with the coils b, the ends of saidtension-springs

